Brush cleaning unit



FIG. 1 is a front, top, side perspective view of a brush cleaning unitshowing our new design;

FIG. 2 is a rear, top, side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view thereof; the other side being a mirrorimage thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof.

The ornamental design for a brush cleaning unit, as shown and described.